cunningham



(No Medal.) 2 Sheets-Sheet 1.

J. CUNNINGHAM. APPARATUS FOR SINGEING HOGS.

N0. 430,'769. Patented June 24, 1890.

2 Sheets-Sheet 2.

(No Model.)

J CUNNINGHAM APPARATUS FOR SINGBING HOGS.

No. 430,769. Patented June 24, 1890;

.when preparing them for the market.

UNITED STATES PATENT OFFICE.

JOHN CUNNINGHAM, OF CHICAGO, ILLINOIS, ASSIG-NOR TO ANDERSON FOIVLER, OF SAME PLACE.

APPARATUS FOR SINGEING HO GS.

SPECIFICATION forming part of Letters Patent No. 430,769, dated June 24, 1890.

Application filed December '7, 1889. Serial No. 332,932. (No model.)

T0 at whom it may concern:

Be it known that I, JOHN CUNNINGHAM, residing at Chicago, in the county of Cook and State of Illinois, and a citizen of the United States, have invented a new and useful Improvement in Apparatus for Singeing Hogs, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure 1 is a vertical section through the center of the furnace and singeing-chamber; Fig. 2 is a section at line 2 2 of Fig. 1. Fig. 3 is a side elevation showing the furnace, the arrangement of the endless chains, and a tank for cooling the chains, which tank is in section.

It is common to singe the carcasses of hogs This has heretofore been accomplished by means of a cylindrical chamber heated by means of furnaces arranged outside of such chamber, coal being used in the furnaces, and the hogs have been lifted up into the chamber through an opening at the bottom thereof and then taken out through the same opening. This manner of heating the chamber is expensive and the singein g operation is comparatively slow.

The objects of my improvement are to provide an improved furnace and singeingchamber adapted to be heated by the use of petroleum, and improved devices for carrying the hogs into and away from the singeing-chambe'r, which I accomplish as illus trated in the drawings and as hereinafter described.

That which I claim as new will be set forth in the claims.

In the drawings, A is the wall of a furnace and singeing-chamber R, supposed, for convenience, to be located on the second floor of a building.

a may be supposed to represent the floor upon which the singeing-chamber is placed, although in the drawings suitable supports for this floor are not shown.

The wall of the furnace may be of brick about sixteen inches thick. In this wall and near the bottom there is an annular chamber 1), from which there are anumber of openings or passages 0, leading to the interior of the singeing-chamber.

B is a pipe through which and through the I burners or tubes 1' petroleum can flow into the chamber 1).

d d are two vertical recesses 1n opposite sides of the wall of the furnace, in which re- 7 cesses the endless chains used to convey the hogs through the singeing-chamber pass for the purpose of protecting the chains somewhat from the intense heat in the chamber.

C D are two doors hinged to the Wall A, which doors open outward, and they are so hung that they close by gravity. There is an opening 6 in the bottom of the furnace.

f g are two doors which are hung at the bottom of the furnace, so as to open downward, I

j 7t Zm are other guide-pulleys for one of the chains, similar guidepulleys being provided for the other chain.

I are metal bars connected with the chains at suitable intervals.

J is a tank for water, through which the chains pass in order to cool them.

K is an inclined platform.

01 is an opening for the purpose of giving access to the chamber b for the purpose of lighting the petroleum flowing from one of the tubes 0". Then the petroleum from this tube has been ignited, the flame will pass around in the chamber 1) and the petroleum from the other tubes 1" will be ignited.

The operation is as follows: Petroleum is to be admitted into the chamber 6 through the tubes 0", and being ignited the flames will pass through the openings 0 into the singeing-chamber R. The hogs to be singed can most conveniently be brought to a point near to the chains F G and in the room below the place Where the furnace is located by being conveyed on a track or rail, as is usual. The hogs one after another are to be hooked onto one of the bars I, and the chains being in motion the hogs will be carried up one after another into and through the singeing-chamber R, and in passing through such chamber will be thoroughly singed. The movement of the chains will bring the hogs one after another into contact with the doors 0 D on the inside, causing them to open, and the hogs will pass out through the doors and be carried to the inclined platform K, at which point an attendant releases them from the bars I. The chains pass through water in the tank J and are cooled.

By constructing a furnace and singeingchamber substantially as described, and using petroleum forfuel, there will be a great saving in the expense of the fuel, and as the chains which carry the hogs move continuously in one direction the operation of singeing will be Very much more rapid than by the old method.

I do not limit myself to a furnace con structed exactly as shown and described.

The essential feature of my invention, so far as the furnace proper is concerned, consists in providing a ehamberin which petroleum can be ignited and from which the flames will pass into the singeing-chamber, there to come in contact with the hogs as they are carried by the chains through the chamber.

I have shown four jets for petroleum. A greater or less number may be used. The flow of petroleum to the chamber 1) is to be regulated in any usual manner.

What I claim as new, and desire to secure by Letters Patent, is as follows:

1. A singeing-furnace consisting of a furnace-Wall inclosing a singeing-chamber and having a bottom inlet and an exit above for the carcasses and constructed with a liquidfuel-ignition chamber and lateral flame-orifices opening into the singeing-chamber, a liquid-fuel-supply pipe for the ignition-chamber, and vertically-traveling chains having carcass-supports for carrying the carcasses into the bottom inlet, upwardly through the singeing-chamber, and out at the exit, substantially as described.

2. Asingeing-furnace consisting of a furnace-wall A, inclosing a singeing-chamber R, provided with an outwardly-swinging door near the top and having an annular liquidfuel-ignition chamber 19 and lateral flameorifices c, communicating with the annular chamber and opening into the singeing-chamher, a liquid-fuel-supply pipe for the annular chamber, and mechanism for carrying the carcasses vertically through the singeingchamber and laterally through the furnace- Wall at the outwardly-swinging door, substantially as described. 7

3. A singeing-furnace consisting of a fur nace-wall A, inclosing a singeing-chamber R and having an outwardly-swinging door, an annularliquid-fuel chamber 1), and a series of flame-orifices c, communicating with the annular chamber and opening into the singeingchamber, a liquid-fuel-supply pipe B, and traveling endless chains F and G, which carry the carcasses vertically through the singeingchamber and laterally therefrom through the furnace-Wall, substantially as described.

4. A singeing-furnace consisting of a furnace-wall A, inclosing a singeing-chamber R and formed with the annular fuel-ignition chamber 1) and vertical oppositely-arranged chain recesses or channelsdd, a liquid-fuel supply pipe B, and the endless carcass-carrying chains F and G, traveling vertically through the recesses or channels and having devices for engaging and moving the carcass upwardly through the singeing-chamber, substantially as described.

5. A furnace and singeing-chamber having recesses d d in the wall thereof, in combination with endless chains F G, running in such recesses and over suitable guide-rollers and provided with bars for supporting the carcasses, substantially as and for the purpose specified.

JOHN CUNNINGHAM.

Witnesses:

ROBERT S. HALL, A. M. MCDOWELL. 

